'deriving Tree (Eq,Ord)'

Bulat Ziganshin bulat.ziganshin at gmail.com
Tue Apr 4 09:34:47 EDT 2006

Hello Ross,

Tuesday, April 4, 2006, 4:55:09 PM, you wrote:

>> http://www.cse.unsw.edu.au/~dons/haskell-1990-2000/msg00727.html
> (Making 'deriving' a separate declaration instead of a clause)

> Orphan instances are discouraged in the GHC libraries, so there might
> not be much support for adding a feature designed to permit orphan
> derived instances.

sorry, i don't understand how them are discouraged? GHC can't support
this because of it's internal limits? i think you mean some other
thing but i can't understand you

Best regards,
 Bulat                            mailto:Bulat.Ziganshin at gmail.com

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